File:RandomBitmap.png|thumb|alt=|A pseudorandomly generated bitmap.
'''Randomness''' is the lack of pattern
[The ''Oxford English Dictionary'' defines "random" as "Having no definite aim or purpose; not sent or guided in a particular direction; made, done, occurring, etc., without method or conscious choice; haphazard."]
A random sequence of events, symbol
s or Procedure (term)|steps
has no :wikt:order|order
and does not follow an intelligible pattern or combination. Individual random events are by definition unpredictable, but in many cases the frequency of different outcomes over a large number of events (or "trials") is predictable. For example, when throwing two dice
, the outcome of any particular roll is unpredictable, but a sum of 7 will occur twice as often as 4. In this view, randomness is a measure of uncertainty of an outcome, rather than haphazardness, and applies to...